CVE-2025-47356
📋 TL;DR
This CVE describes a double-free vulnerability in Qualcomm components where concurrent thread access to shared resources can cause memory corruption. This could allow attackers to execute arbitrary code or cause denial of service. Affected systems include devices using vulnerable Qualcomm chipsets and drivers.
💻 Affected Systems
- Qualcomm chipsets and associated drivers/firmware
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or persistent backdoor installation
Likely Case
Application or system crash causing denial of service, potentially requiring device restart
If Mitigated
Controlled crash with minimal service disruption if proper memory isolation and privilege separation are implemented
🎯 Exploit Status
Exploitation requires race condition timing and specific application behavior
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to Qualcomm January 2026 security bulletin for specific patched versions
Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/january-2026-bulletin.html
Restart Required: Yes
Instructions:
1. Check Qualcomm advisory for affected components. 2. Obtain updated firmware/drivers from device manufacturer. 3. Apply updates following manufacturer instructions. 4. Reboot device to activate fixes.
🔧 Temporary Workarounds
Disable vulnerable services
allIdentify and disable services using affected Qualcomm components if not essential
Implement thread synchronization
allAdd proper mutex locks or synchronization primitives in application code accessing shared resources
🧯 If You Can't Patch
- Isolate affected systems from untrusted networks
- Implement strict application control to prevent unauthorized code execution
🔍 How to Verify
Check if Vulnerable:
Check Qualcomm component versions against advisory; examine system logs for memory corruption errorsCheck Version:
Device-specific commands vary; consult manufacturer documentation for version checkingVerify Fix Applied:
Verify updated Qualcomm firmware/driver versions match patched versions in advisory📡 Detection & Monitoring
Log Indicators:
- Memory corruption errors
- Application crashes with segmentation faults
- Kernel panic logs
Network Indicators:
- Unusual process spawning following service requests
- Anomalous outbound connections from system processes
SIEM Query:
source="system_logs" AND ("segmentation fault" OR "double free" OR "memory corruption")